Niklas Elmqvist, Ph.D.


  
datameadow
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Synopsis: Structured starplot parallel coordinate displays using a data flow model and dynamic query axis filtering for visual analytics.

News

  • (2007-11-05) Presentation at VAST 2007 - Our presentation of the DataMeadow at IEEE VAST 2007 was well-received. The slides have been put online.
  • (2007-06-05) DataMeadow to appear at IEEE VAST 2007 - Our first paper on the DataMeadow project, DataMeadow: A Visual Canvas for Analysis of Large-Scale Multivariate Data has been accepted to IEEE VAST 2007 and will be presented at the conference during the beginning of November.

Details

  • Start date: February, 2006
  • End date: October, 2007

The DataMeadow is an application platform for visual analytics supporting the rich interaction model and analysis pipeline necessary to promote reasoning about and studying multivariate, large-scale data. It consists of a 2D canvas and a number of visual elements for representing information. The primary visual element is the DataRose, a parallel coordinate starplot displaying selected dimensions of a dataset on its axes. Each axis has a dynamic query slider, allowing for in situ axis filtering on the data. Several roses can be chained together in a data flow fashion and changes to one rose will propagate to all of its dependencies. This allows for playful interaction and serendipitous data discovery.

We have implemented a prototype of the DataMeadow method and analyzed its performance with a number of experts. We plan on continuing this user evaluation and iteratively refine the application to a state where it can be actively used by analysts in real multivariate data exploration.

People

Publications

  • N. Elmqvist, J. Stasko, P. Tsigas. DataMeadow: A Visual Canvas for Analysis of Large-Scale Multivariate Data. Information Visualization, 7(1):18-33, 2008. [AVI] [YouTube] [BibTeX] [Website]
  • N. Elmqvist, J. Stasko, P. Tsigas. DataMeadow: A Visual Canvas for Analysis of Large-Scale Multivariate Data. In Proceedings of the IEEE Symposium on Visual Analytics Science and Technology, pp. 187-194, 2007. [PDF] [AVI] [PPT] [YouTube] [SlideShare] [BibTeX] [Website]

Media

DataMeadow prototype application. US Census 2000 bedroom query between NY and VT. US Census 2000 number of persons query between NY and VT. US Census 2000 query branch intersection for value and acreage.